Viruses are considered to be non-living and because they are not alive, they can not reproduce. A better term is to replicate or make a copy of themselves. It is like using a copy machine.
Viruses are microscopic parasites, generally much smaller than bacteria.
They lack the capacity to thrive and reproduce outside of a host body.
The polio virus, 30 nm across, is about 10,000 times smaller than a grain of salt. Such differences in size between viruses and bacteria provided the critical first clue of the former’s existence.
They have a protein coat and RNA or DNA, not both.
DNA or RNA
A typical virus is composed of a core of DNA or RNA surrounded by a protein coat.
a typical virus has a core of DNA or RNA and a protein coat
If it consists only of these two components it is a virus.
A typical virus is made up of a core of genetic material, either RNA or DNA. It is engulfed by a protective coat referred to as a capsid which is made up of protein.
Virus (singular-virion)
In most cases, viruses are covered by a protein shell that encases the DNA. THis makes them impossibly small! Since that's all viruses are, they aren't technically alive (last time I checked) and are in a class all their own. They typically have a sort of injector apparatus that when latches onto cells injects the DNA into your own cell. When your cell finds DNA floating around it says "Hey! This should be in the nucleus" and brings it there, where it hijacks the cell into producing more viruses until the membrane ruptures and the viruses are set loose to the surrounding cells.
A typical virus can weigh anywhere from a few femtograms to a few nanograms, depending on the type and size of the virus. On average, a typical virus weighs around 10-1,000 femtograms.
The inner core contains genetic makeup that creats new viruses.
The mantle and core are composed of the same material.APEX
DNA or RNA
it has the same core as earth, just on another planet